RE: My first rifle
David,
Don't limit yourself to just a 30-30. If you are looking to mount a scope you may want to try a different caliber in a different type of rifle. If you are looking for something similar to hunt deer with try the 308 Winchester in a bolt action rifle. This type of rifle will be more accurate and flatter shooting. The recoil is not that much more than a 30-30 firing the same weight bullet. 308's are available in bolt, semi-auto, lever, & pump actions from all of the major US manufacturers.
If you must have a 30-30 I would definately purchase a Marlin 336 over the Winchester 94. I have seen some Marlin's that would group nearly as well as some bolt guns out of the box. If you hunt in areas where you may take a shot at over 150 yards I would consider going with a different caliber such as the 308 I mentioned or even the 30-06.